There are total 5 hours or 300 minutes from 4pm to 9pm. In words, this duration is equal to five hours or three hundred minutes.
How many hours from
| 4PM to 7PM | 3PM to 8PM | 12PM to 4PM |
| 4AM to 1AM | 11AM to 1PM | 4AM to 5AM |
| 11AM to 2PM | 9AM to 1AM | 6PM to 6AM |
| 6PM to 10AM | 8PM to 4PM | 9AM to 10PM |
| 7PM to 4PM | 6AM to 3AM | 5AM to 10PM |
| 2AM to 1PM | 10AM to 8AM | 2AM to 1PM |
